Diesel 16-speed 4WD August 22 - 29, 1979 Link: Nebraska Tractor Test 1320 file PTO performance Drawbar performance Gear 4LoDD used for power test Gear 1LoDD used for pull test
Power at rated engine speed
150.41hp / 112.2kW
Fuel use
9.6gal/hour / 36.3l/hour
Power at rated PTO speed
152.07hp / 113.4kW
Max power
126.15hp / 94.1kW
Max pull
17589lbs / 7978kg
INTERNATIONAL HARVESTER 6588 POWER
Engine
177hp / 132.0kW
Drawbar (claimed)
130hp / 96.9kW
PTO (claimed)
150hp / 111.9kW
Drawbar (tested)
126.15hp / 94.1kW
PTO (tested)
150.41hp / 112.2kW
ENGINE DETAIL
Description
International Harvester DT 466B turbocharged diesel 6-cylinder liquid-cooled
Displacement
466ci / 7.6L
Bore/Stroke
4.30x5.35inches / 109x 136mm
Power
177hp / 132.0kW
Rated RPM
2400
Starter volts
12
Oil capacity
20qts / 18.9L
Coolant capacity
34qts / 32.2L
INTERNATIONAL HARVESTER 6588 ENGINE
Description
International Harvester 7.6L 6-cyl diesel
TRANSMISSION
Type
two-range power shift
Gears
16 forward and 8 reverse
Oil capacity
94.5qts / 89.4L
Description
Left lever selects high, low, or reverse range. Right lever selects gear. On-the-move powershift without the clutch between gear pairs 1/2, 3/4, 5/6, and 7/8. Synchronized shift (with the clutch) from 2-to-3, 4-to-5, and 6-to-7
SPEEDS
Description
With 18.4-34 tires
MECHANICAL
Chassis
4x4 articulated 4WD
Steering
articulated hydrostatic power
Cab
Cab standard with burgundy finish, heat, and A/C. Optional wester finish interior
Transmission
16-speed two-range power shift
CAPACITY
Fuel
89gal / 336.9L 139gal / 526.1L (optional)
Hydraulic system
23.6gal / 89.3L
HYDRAULICS
Type
closed center
Capacity
23.6gal / 89.3L
Valves
2 to 4
Pump flow
18gpm / 68.1lpm
Steering flow
12gpm / 45.4lpm
TRACTOR HITCH
Rear Type
III/II
POWER TAKE-OFF (PTO)
Rear PTO
independent
Rear RPM
1000
INTERNATIONAL HARVESTER 6588 TIRES
Ag front
18.4-38
Ag rear
18.4-38
DIMENSIONS
Wheelbase
110inches / 279cm
Length
228.3inches / 579cm
Width
101.61inches / 258cm
Shipping weight
16320lbs / 7402kg
Ground clearance
28.4inches / 72cm
INTERNATIONAL HARVESTER 6588 HEIGHT
Hood
79.9inches / 202cm
Cab
114.1inches / 289cm
Exhaust
125.4inches / 318cm
DIMENSIONS & TIRES
Wheelbase
110inches / 279cm
Weight
16320lbs / 7402kg
Front tire
18.4-38
Rear tire
18.4-38
6588 SERIAL NUMBERS
Location
transmission housing, right side
1981
8801
1982
8966
1983
9164
1984
9361
1985
9526
ELECTRICAL
Ground
negative
Battery volts
12
About International Harvester Tractor
The 6588 type tractor is part of the International Harvester 60 2 plus 2 Series. The 6588 is a type, that is used mostly in the Agriculture Tractors. The engine of the 6588 tractors is impressive. This setup improves real-world applicability.